638164916

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{1103}}^1\times {\mathrm{1327}}^1$

素因数の和:2543

約数の個数: 24

約数和(自身を含む): 1128906240

約数和(自身を除く): 490741324

約数列:

[1, 2, 4, 109, 218, 436, 1103, 1327, 2206, 2654, 4412, 5308, 120227, 144643, 240454, 289286, 480908, 578572, 1463681, 2927362, 5854724, 159541229, 319082458, 638164916]

約数ペア:

[(1, 638164916), (2, 319082458), (4, 159541229), (109, 5854724), (218, 2927362), (436, 1463681), (1103, 578572), (1327, 480908), (2206, 289286), (2654, 240454), (4412, 144643), (5308, 120227)]